on the 2nd of January, i had sex with a girl , whose status i don t know, gave her a ********, sh gave me too, penetrated her without a condom, but it was only for a few minutes, 3 minutes, in the morning i asked her , she said she is negative, we went to get tested, i was negative, she was also negative, she even showed a pic of her test and folder, 3 days later i woke with a swollen tender lymph node, and then anxiety , stress, kicked in, read symptoms on the internet, and lymph nodes were 1 of them, loose stomach came in, more swollen lymph nodes, dry mouth at times, raised red skin pimples, 3 of them, feeling tired, loss of appetite, its been 2 weeks since the possible exposure, got tested again yesterday, was negative..... I am stressed out, please help